n. 1. A suspension of small globules of one liquid in a second liquid with which the first will not mix: an emulsion of oil in vinegar. 2. A photosensitive coating, usually of silver halide grains in a thin gelatin layer, on photographic film, paper, or glass. [New Latin ēmulsiō, ēmulsiōn-, from Latin ēmulsus, past participle of ēmulgēre, to milk out : ē-, ex-, ex- + mulgēre, to milk; see melg- in the Appendix of Indo-European roots.] e·mulsive adj. |
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